![Andover Controls ACX 780 Скачать руководство пользователя страница 29](http://html1.mh-extra.com/html/andover-controls/acx-780/acx-780_installation-manual_2942440029.webp)
Hardware Installation
ACX 780/781 Installation Guide 23
Figure 9. Wiring Switch with Built-in Resistor to DoorSwitch Input
Each switch requires a single parallel resistor to provide extra
security should an intruder attempt to break in through the door by
closing the contact.
2. Slip the ground wire under the RET screw that corresponds to the IN
number and tighten the screw down on it.
3. Be sure you wire the 10 K
Ω
resistor in parallel as shown in each
diagram.
Figure 10 shows the how the door switch works if it is an ordinary
switch (normally open). The switch remains open while the door is in a
normal state (closed or not tampered with). If the switch detects the
door is open or has been tampered with, it appears closed.
IN1
RET
10 K
Ω
Technical Manuals Online! - http://www.tech-man.com
firealarmresources.com